Continuity mistake: Just as Precious is running out of the deli with her stolen bucket of chicken, you can see that she has left her new journal and pen on the counter. Later, in her first day of school, she has the journal.
Continuity mistake: At the first part of the movie when Candy (the prostitute) leaves the courthouse to talk to Derek, her hair moves between shots. Sometimes in front of her shoulder and sometimes behind her shoulder etc.
Continuity mistake: When Maynard is teaching Tony to shoot a gun, Tony fires three shots first. The gun's chamber closes as usual (meaning the gun still has ammo). We see a shot of Maynard, then flick back to Tony and the chamber is now open (meaning the gun is out of ammo). Tony then fires three more shots from an apparently empty magazine before being told to reload. (01:26:40)
Continuity mistake: When Vivian comes out on the porch with a bottle of soda, the level is way under the label. When she goes down the stairs the level is way over the label on the bottle. (00:42:30)
Continuity mistake: When Cole fills the water jug at the creek, it is only about a fourth full of water when he caps it and hands it to Captain Burroughs. A moment later as they are walking away, the jug is almost completely full of water. (00:18:50)
Continuity mistake: When Walter steps into the cat poo he gets it right under the middle of the shoe. When he then lifts his foot to take a look it's stuck under the front of the shoe with no sign of poo in the middle. (00:17:30)
Continuity mistake: When Gigi calls Alex for the first time to get his opinion about a guy "Jarrad", Alex puts her on hold and goes into his office to pick up the call. In the bar the phone line is lit up where it's holding, but the office phone is not lit up at all.
Continuity mistake: In the final scene, after George falls to the floor with a heart attack, the alarm clock is knocked onto the floor but the position changes from near his elbow (in the overhead shots) to closer to his hand (in the floor-level shots).
Continuity mistake: During the song 'Video Girl' watch Nick's tie because the tie is on, then it's off, then on again, then off and so on. (00:23:35 - 00:28:00)
Continuity mistake: Lyn has a patch on his nose and it's loose on one side. In the next scene it's attached tight to his nose again. (01:17:00)
Continuity mistake: When Sugar Bear flies through the air and lands on Truck at the end dance off, Trucks legs bend backwards underneath him. When Sugar Bear gets off of him, he's now flat but his legs are laid straight out instead of bent.
Continuity mistake: Approximately 10 minutes into the movie the main character is going to burglarize a house and there is a guard dog on a chain in the yard that bites him, through a black mask, on his left cheek. After he is in the upstairs bedroom trying to open a safe, you can see blood around the hole near his left eye, but when he pulls off the mask, there is no longer blood on his left cheek, or any signs of a puncture wound.
Continuity mistake: When Bison beats Cantana to death, blood splatters onto his face. It disappears and re-appears from shot to shot during the scene. (Unrated version only).
Continuity mistake: When Joel and Dean sit at the booth to talk, Dean places two beers on the table such that the labels are facing the camera. As they talk and the camera switches back and forth between the two friends, Dean's beer switches orientation showing the label in some shots and not in others, despite the fact that he does not touch the bottle whatsoever. There isn't enough time between shots to allow him to move the bottle or drink any as the bottle remains full.
Continuity mistake: When Billy and Bolger are driving down the road after the funeral, they are on a 2-lane road, with nothing but grass and trees on either side. But when the shot changes so they're facing the camera, it's a 4-lane road with a lot more traffic. Then the road becomes much bigger with a median.
Continuity mistake: After seeing the aborted baby, Quaid goes into the bathroom and plunges his head into water. His hair, however, is perfectly dried afterward. (00:35:35)
Continuity mistake: When Mary first opens the phone book at the post office she lands on Finklestein but when she puts her finger on the name she chooses it as Hororwitz, even though she never turned the page again.
Continuity mistake: The location of Mr. Ferguson's body on the rug (while he was apparently in a "mushroom stupor") changed a few times. He started with his head near the lefthand edge of the rug, but was about a yard toward the right edge when Nick was walking past him. A little later, Mr. Ferguson's feet were at the right edge of the rug, then about a foot beyond the rug, but his body was back to the middle with the next camera shift. (01:01:35 - 01:04:23)
Continuity mistake: During the fight in the bathroom, Zoe and the villain break a bathroom stall door and side-wall down. In the next shot the door is back up in its original position. It is the same door that is beside the urinal, not another stall, as it's a small bathroom with only one stall and urinal. (00:28:30 - 00:30:00)
Continuity mistake: During the fight, the extent to which the fire (starts on top of the mound) spreads toward the ground varies. Also, the fire burns downward through snow, but does not melt the surrounding snow along the sides and bottom of the mound. (01:15:35)